Excellent introduction; what I know, I know from this game programTM Use with Keyboard Controller Nice intro to 6502 programming; in browser emulator; shows registers memory, etc 6502.org: http://www.6502.org/tutorials/6502opcodes.html Great 6502 resource site; link is to a handy opcode reference Atari Color Chart: http://www.randomterrain.com/atari-2600-memories-tia-color-charts.html Colors are tricky on the VCS; this will help a lot Presentation: https://github.com/logosity/atari-intro-osom Home of the source code for this presentation Documentary: Atari: Game Over Great to get a sene of the history & mystery of ET cartridges solved Book: Racing the Beam In depth, and fairly technical look at how these games were written